Maths Exercises
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Maths Exercices
Systems of equations
  • Systems of two linear equations
    • Special products
  • Special products
    • Determinants
  • Determinants
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    Percentages
    Percentage decreases.

    In a sale, there is a rack of trousers marked "All prices in this rack are reduced by 20%!".
    The one I choose now had a price of £50. How much have I to pay now?




    If 300 is reduced by 45% the result will be:

    .